SUNNY ISLAND 5048 - Technical Description - Wind & Sun Ltd.
SUNNY ISLAND 5048 - Technical Description - Wind & Sun Ltd.
SUNNY ISLAND 5048 - Technical Description - Wind & Sun Ltd.
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Connecting External Sources SMA Solar Technology AG<br />
Autostart<br />
This allows autostart generators to be directly integrated. They have a separate internal controller that<br />
controls the start procedure.<br />
The <strong>Sun</strong>ny Island requests the generator via the GnReq signal. If the generator voltage and frequency<br />
are within the set limits (see section 14.1.6 ”Limits and Power Adjustment” (page 118)), the device is<br />
synchronized and connected following the warm up time.<br />
The <strong>Sun</strong>ny Island keeps the request signal active until a disconnection is made and the set follow-up<br />
time has expired.<br />
After-run<br />
Autostart generators can have an internal after-run cycle that is only activated when the<br />
request has been disabled. This can extend the follow-up time accordingly.<br />
Internal warm-up phase<br />
With some generator types, the voltage is only switched to the output after the internal<br />
warm-up phase is finished. Therefore, the time of the generator activation sequence is<br />
monitored internally.<br />
• Time for connection = 10 minutes for GenMan<br />
or<br />
• 2 x "234.12 GnWarmTm" + 2 minutes for manual and automatic start<br />
The following figure shows the wiring for a generator capable of autostart:<br />
If the generator is started manually in this operating mode, the <strong>Sun</strong>ny Island detects the running<br />
generator and connects it once the warm-up time has expired. If the generator is externally stopped,<br />
this is detected, the generator is disconnected and the stand-alone grid system is continued to be<br />
supplied.<br />
110 SI<strong>5048</strong>-TB-TEN110340 <strong>Technical</strong> <strong>Description</strong>